In australia our main conservative party is the "liberal party" (Yes its confusing, and theres a long history behind why this is). When I was at university, there was a thing called the "young liberals movement". Its essentially the cadet wing of the adult party. Theres also a young labor party too. I got a bit of an insight into how these parties work watching these kids, and boy did it not look promising.They'd turn up to university in bowties and suits, this being the 1990s when standard student dress was ripped flannelette, a nose ring and green hair, and march around campus screaming at people calling them "f**gots" and "commies" and students are like "Dude, get out my face I have a class to go to". They'd get rough with people too, though it *rarely* worked out well for them. I saw a bunch of them turn up to a talk by a woman who was a sexual assault survivor and one of them started shouting out "You deserved it b*tch" etc, and wouldnt shut up till the largest middle aged lesbian I've ever seen rocked over and hit him so hard he flew off his feet. He deserved it too, he was menacing young women, and screaming at people, if giant lesbian lady hadn't throttled him, campus security likely would have. This was, maybe 1996.
These junior psychos end up as the politicians of tomorrow, which at this point is today. I worked at the student union, and encountered one absolute freak of a man, albino, dressed like he was from the 1800s, very agressive, would turn up to events and try and disrupt them. Etc. Well, in the years since, he started working as a senate staffer, then became a state senator, aaaand then it came out he was a serial pedo. In his few years in power he rapidly got a reputation as an absolute bastard. He was hardly the sole exception either. The most famous ex young-liberal was "half term" tony abbot, the man who was briefly prime-minister for about a year before his own party got sick of his extremist nonsense and rolled him out and replaced him with the entirely respectable centrist Malcolm Turnbull. But the damage to the party was already done and Turnbull himself got rolled and replaced with the obnoxious Scott Morrison, aka "Scotty from marketing" who largely had similar policies as Abbott, but was less prone to insane ranting.
The thing is, the rot starts from the roots. How the party gains its membership. The LNP started off as being basically the rich guys party, but then started to move towards recruiting via campus psychos. And it started turning into an extremist party.
The LNP are likely to be out of power for a while now. The demographics are not in their favor. Eventually that'll happen to the republicans too. Its current insanity is in part because the party knows that demographically its projected to lose Texas at some point in the next decade, and once it loses texas, the game is over, the presidency cant be won without it just as the dems cant win the presidency without california. So its in a rampage trying to use what MIGHT be its last presidency in a generation to buttress itself against those demographic changes. That would be a lot harder in australia, our system is a lot harder to fudge by gerymandering, voter caging and other nonsense tactics. But in the US, you guys have *serious* structural problems with your electoral system you need to sort out, or its gonna stay a two party system that attracts radicals and psychos. Cos Abbot was bad, but he was no Trump.